Dimensions
Size comparison
S1 Pro LFRT649
| S1 Pro LF | RT649 | Difference | |
|---|---|---|---|
| Height | 53 mm | 54 mm | −1 mm |
| Width | 108 mm | 174 mm | −66 mm |
| Depth | 20 mm | 32 mm | −12 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is S1 Pro LF better than RT649?
S1 Pro LF has no measurable advantages in this pair.
Why is RT649 better than S1 Pro LF?
RT649 has no measurable advantages in this pair.
Specifications
Side by side
| Radio & range | ||
| Radio standards | PMR446 | PMR446 |
| Licence | Licence-free | Licence-free |
| Digital mode (DMR / dPMR) | No | No |
| Frequency ranges | 446 MHz | 446 MHz |
| Transmit power | 0.5 W | 0.5 W |
| Channels | 16 | 16 |
| CTCSS / DCS sub-tones | — | Yes |
| Squelch | — | automatic |
| Call tones | — | 20 |
| Power & battery | ||
| Battery capacity | 2,200 mAh | — |
| Battery voltage | 3.8 V | 3.6 V |
| Power source | Rechargeable pack | AA / AAA batteries |
| USB-C charging | No | No |
| Battery level indicator | Yes | Yes |
| Design & durability | ||
| Weight | 145 g | — |
| Width | 108 mm | 174 mm |
| Height | 53 mm | 54 mm |
| Depth | 20 mm | 32 mm |
| Protection rating | — | IP65 |
| Water protection (IPx) | — | IPx5 |
| Display | Backlit display | Backlit display |
| Colours | — | Orange |
| Features | ||
| VOX (hands-free) | — | Yes |
| VOX sensitivity levels | — | 3 |
| Channel scan | — | Yes |
| Dual watch | — | Yes |
| Flashlight | — | Yes |
| Key lock | Yes | Yes |
| Roger beep | — | Yes |
| Monitor button | — | Yes |
| PC programmable | Yes | — |
| Connectivity | ||
| Headset / earpiece jack | Yes | Yes |
| Connectors | 3,5mm Klinke | micro USB |
| Bluetooth | Yes | — |
